Evidence map›Paper›PMID 20200958›Full record

ArticleJournal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research2010

Local low-dose lovastatin delivery improves the bone-healing defect caused by Nf1 loss of function in osteoblasts.

Weixi Wang, Jeffry S Nyman, Heather E Moss, Gloria Gutierrez, Gregory R Mundy, Xiangli Yang, Florent Elefteriou

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Identifying Bone Matrix Impairments in a Mouse Model of Neurofibromatosis Type 1 (NF1) by Clinically Translatable Techniques.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Atorvastatin promotes bone formation in aged apoEJournal of orthopaedic surgery and research · 2020
    Article
  11. Article
  12. Article
  13. Article
  14. Combined MEK inhibition and BMP2 treatment promotes osteoblast differentiation and bone healing in Nf1Osx -/- mice.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2015
    Article
  15. Article
  16. Article
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  18. Article
  19. Hyperactive transforming growth factor-β1 signaling potentiates skeletal defects in a neurofibromatosis type 1 mouse model.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2013
    Article
  20. Delayed fracture healing in tetranectin-deficient mice.Journal of bone and mineral metabolism · 2013
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Weixi WangVanderbilt University Medical Center, Department of Medicine, Nashville, TN 37232-0575, USA.
Jeffry S Nyman
Heather E Moss
Gloria Gutierrez
Gregory R Mundy
Xiangli Yang
Florent Elefteriou
Vanderbilt University Medical Center · USVA Tennessee Valley Healthcare System · US

Funding

Bone Pseudoarthrosis Dissected through the Generation of New Mouse ModelsR01AR055966 · NIAMS · VANDERBILT UNIVERSITY · PI ELEFTERIOU, FLORENT · 2009 to 2013
$1.7M
Transcriptional Regulation of Indian Hedgehog Expression in ChondrocytesR01AR055972 · NIAMS · VANDERBILT UNIVERSITY · PI YANG, XIANGLI · 2008 to 2012
$1.7M
NIAMS NIH HHS 1R01AR055966-01A1NIAMS NIH HHS R01 AR055966NIAMS NIH HHS R01 AR055972
6 · The paper itself

Abstract

Postfracture tibial nonunion (pseudoarthrosis) leads to lifelong disability in patients with neurofibromatosis type I (NF1), a disorder caused by mutations in the NF1 gene. To determine the contribution of NF1 in bone healing, we assessed bone healing in the Nf1(ob) (-/-) conditional mouse model lacking Nf1 specifically in osteoblasts. A closed distal tibia fracture protocol and a longitudinal study design were used. During the 21- to 28-day postfracture period, callus volume, as expected, decreased in wild-type but not in Nf1(ob) (-/-) mice, suggesting delayed healing. At these two time points, bone volume (BV/TV) and volumetric bone mineral density (vBMD) measured by 3D micro-computed tomography were decreased in Nf1(ob) (-/-) callus-bridging cortices and trabecular compartments compared with wild-type controls. Histomorphometric analyses revealed the presence of cartilaginous remnants, a high amount of osteoid, and increased osteoclast surfaces in Nf1(ob) (-/-) calluses 21 days after fracture, which was accompanied by increased expression of osteopontin, Rankl, and Tgfbeta. Callus strength measured by three-point bending 28 days after fracture was reduced in Nf1(ob) (-/-) versus wild-type calluses. Importantly, from a clinical point of view, this defect of callus maturation and strength could be ameliorated by local delivery of low-dose lovastatin microparticles, which successfully decreased osteoid volume and cartilaginous remnant number and increased callus BV/TV and strength in mutant mice. These results thus indicate that the dysfunctions caused by loss of Nf1 in osteoblasts impair callus maturation and weaken callus mechanical properties and suggest that local delivery of low-dose lovastatin may improve bone healing in NF1 patients.

Indexed as

AnimalsBone DensityBony CallusFracture HealingLovastatinMaleMiceNeurofibromatosis 1Neurofibromin 1OsteoblastsTibial FracturesX-Ray MicrotomographyLovastatinNeurofibromin 1

Identifiers

PMID20200958
PMCPMC3154004
OpenAlexW2040053082

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.